原子能科学技术2012，Vol.46Issue(6)：705-709,5.
摇摆条件下自然循环流动不稳定性的混沌特性研究
Study on Chaotic Characteristics of Natural Circulation Flow Instability Under Rolling Motion
摘要
Abstract
Non-linear time series analysis on irregular complex flow oscillations of natural circulation system under rolling motion was studied. The correlation dimension, Kz entropy and maximal Lyapunov exponent (MLE) were determined based on phase space reconstruction theory. The chaotic features of the irregular complex flow oscillations were analyzed by comparing with density wave oscillation and trough-type flow oscillation base on the results of geometric invariants. The results indicate that irregular complex flow oscillations are typical chaotic oscillations, the interaction and feedback of thermal driving forces, flow resistance and additional forces caused by rolling motion lead to the emergence of chaos.关键词
自然循环/摇摆运动/不稳定性/混沌振荡Key words
natural circulation/rolling motion/instability/chaotic oscillation分类
能源科技引用本文复制引用
张文超,谭思超,高璞珍,张虹,张红岩..摇摆条件下自然循环流动不稳定性的混沌特性研究[J].原子能科学技术,2012,46(6):705-709,5.基金项目
国家自然科学基金资助项目(50806014) （50806014）
中央高校基本科研业务费专项资金资助项目(HEUCFZ1008) （HEUCFZ1008）
核反应堆系统设计技术重点实验基金资助项目 （）
